Polyaspartic vs Epoxy: Which Floor Coating Is Right for Your Project?
One of the most common questions we get at Latux is: should I use epoxy or polyaspartic for this floor? The short answer is — both, in the right order. The longer answer is that each coating has a specific role in a professional floor system, and understanding the difference will make you a better installer and a more persuasive salesperson.
What Is Epoxy Floor Coating?
Epoxy is a two-component coating made from epoxy resin and a polyamine hardener. When combined, they undergo a chemical reaction that creates an extremely hard, durable film. 100% solids epoxy (like the Everflow EF-100) contains no water or solvents — every molecule contributes to the final film thickness, giving you maximum build and bond strength.
Epoxy is typically applied as a base coat in a floor system. Its high viscosity and self-leveling properties make it ideal for filling surface voids and creating a thick, durable foundation layer.
What Is Polyaspartic Coating?
Polyaspartic is an aliphatic polyurea — a newer technology that cures significantly faster than epoxy while offering superior UV stability. Unlike standard epoxy, polyaspartic coatings (like the Everflow EF-275) will not yellow when exposed to sunlight, making them the preferred choice for any floor that sees natural light.
Polyaspartic is typically used as a topcoat over an epoxy base, though it can also be used as a standalone single-coat system on prepared concrete for fast-turnaround commercial jobs.
Key Differences at a Glance
Cure Time: Epoxy typically requires 18–24 hours before topcoat application and 72 hours before heavy use. Polyaspartic can accept foot traffic in as little as 2–4 hours, making it ideal for commercial jobs with minimal downtime requirements.
UV Stability: Standard epoxy yellows in UV light. Polyaspartic is aliphatic and UV-stable — it will not yellow, even in direct sunlight. For any floor with windows or exterior exposure, a polyaspartic topcoat is non-negotiable.
Application Window: Epoxy has a longer working time (pot life of 30–45 minutes at 70°F), giving installers more time to work the floor. Polyaspartic has a shorter pot life, particularly in warm weather. Always check your TDS for temperature-specific pot life data.
Build Thickness: Epoxy builds much thicker than polyaspartic. A single coat of 100% solids epoxy can achieve 10–20 mils wet. Polyaspartic is applied thinner (5–10 mils) and is designed to protect and beautify, not to build thickness.
Cost: Polyaspartic is generally more expensive per gallon than epoxy. However, its faster cure time can reduce labor costs on commercial jobs, often making the total installed cost competitive.
When to Use Epoxy
- As a base coat in any multi-coat floor system
- When you need maximum thickness and void-filling
- Metallic and decorative systems (epoxy base + metallic pigment)
- Areas with high moisture vapor (use a dedicated MVB first)
- When budget is the primary concern
When to Use Polyaspartic
- As the final topcoat over any epoxy base system
- Fast-turnaround commercial jobs (open to traffic same day)
- Any floor exposed to UV/sunlight
- Standalone single-coat system on properly prepared concrete
- When the client demands a crystal-clear, non-yellowing finish
The Professional Answer: Use Both
The best floor system combines the strengths of both coatings. Apply a 100% solids epoxy base (with metallic pigment, broadcast flake or solid color as desired), then seal and protect with a polyaspartic topcoat. This gives you the thickness and build of epoxy with the UV stability and fast cure of polyaspartic.
This is the system Latux recommends for 90% of residential and commercial floor installations. It delivers the best long-term performance, the best aesthetics and the highest customer satisfaction.
Browse our Epoxy Floor Coatings and Polyaspartic Topcoats to build your system, or call us at (800) 413-1427 for product recommendations specific to your job.